Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1TFO callsign genealogy
Currently held by Goller, John M
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W1TFO's current licensee, walking backwards.
- Goller, John MCAgranted 2018-12-07cancelled 2019-01-01
Successor callsigns
Callsigns held now by people who previously held W1TFO.
No current licensee on record previously held this callsign.